What's the Rose Parade without Mack Sennett?

If Occupy LA members sneak a little civil disobedience into today's Rose Parade, they won't be the first to exploit Pasadena's big day. In the 1913 parade, Mack Sennett and his Keystone Film Company entered the parade — as a guise to cleverly shoot some footage for an upcoming movie. Mary Mallory tells the story at the history blog The Daily Mirror.